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Simply master the usage of horizontal line annotations and code comments in HTML

高洛峰
高洛峰Original
2017-02-21 13:47:491908browse

Horizontal line
Use the 231a563c997aa9e3e0ae614bd16728b0 tag to draw a horizontal dividing line at the current position.
Example:

<p>主要内容</p>  
<hr />  
<p>底部内容</p>

Horizontal lines can effectively isolate different content parts and give people a sense of hierarchy.
Tips:
Since the borders of DIV or other block elements can be formatted and displayed through CSS, many times the width of the border of the block element is set to achieve the effect of a horizontal line, but 944d16e1bfca79f2ad02b0a9e3a6d43c tag still cannot be completely replaced.

HTML Comment
The XHTML comment tag is a special tag. As the name suggests, it is used to comment on the content in the XHTML document. Of course, it will not be displayed in the browser. The comment tags are as follows:

<!—这个地方写注释内容-->  
一个例子:   
<div id="nav"><!--nav start-->

Note:
There is an exclamation mark after the opening left bracket. In addition, do not write comments in other languages ​​such as "//" or "/*".
Tips:
It is a good habit to add comments appropriately and can be used wherever you want to comment so that the HTML documents we write are easy to read and maintain.

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